> I don't see 'grandma' building here own calendar app via Claude Code that reminds her of the family birthdays.

If you think of apps in the traditional sense I think I agree with you, but I have a feeling things are about to become a lot more messy.

Grandma might not even know she's building her own calendar app.

I don't think we are that far from being able to ask a general purpose AI to "help me not forget my family's birthdays" and it creating and maintaining code for that purpose. Not quite an app, but more than a one off script, I think AIs are going to unlock this weird situation where they're running a bunch of barely organized code almost as an extension of thinking.